Bottleneck effects in the relaxation and photoluminescence of microcavity polaritons

@article{citeulike:1259756, abstract = {A theoretical model for the investigation of the dynamics of microcavity polaritons in the strong-coupling regime is proposed. The resulting photoluminescence dynamics at small angles is studied as a function of the angle of observation; the cavity detuning; the lattice; and the free-carrier temperature. For small detunings; the strong dispersion of the microcavity polaritons at small angles results in a bottleneck relaxation dynamics; similar to the bulk one. However; important differences; related to the reduced dimensionality of the system; are found. In particular; a larger emission from the upper polariton with respect to the lower polariton is found for any temperature. Moreover; a two-lobe angular emission from the lower branch is also expected. In the case of large pump excess energies; when hot carriers are injected into the system; longitudinal-optical-phonon emission has also been considered as a possible polariton formation mechanism; and shown to reduce only partially the effects summarized above.}, author = {Tassone, F. and Piermarocchi, C. and Savona, V. and Quattropani, A. and Schwendimann, P. }, citeulike-article-id = {1259756}, doi = {http://dx.doi.org/10.1103/PhysRevB.56.7554}, journal = {Physical Review B}, keywords = {bottleneck, keeling\_ref}, number = {12}, pages = {7554+}, posted-at = {2007-04-27 11:34:33}, priority = {2}, publisher = {American Physical Society}, title = {Bottleneck effects in the relaxation and photoluminescence of microcavity polaritons}, url = {http://dx.doi.org/10.1103/PhysRevB.56.7554}, volume = {56}, year = {1997} }

TY - JOUR ID - citeulike:1259756 L3 - citeulike-article-id:1259756 N2 - A theoretical model for the investigation of the dynamics of microcavity polaritons in the strong-coupling regime is proposed. The resulting photoluminescence dynamics at small angles is studied as a function of the angle of observation; the cavity detuning; the lattice; and the free-carrier temperature. For small detunings; the strong dispersion of the microcavity polaritons at small angles results in a bottleneck relaxation dynamics; similar to the bulk one. However; important differences; related to the reduced dimensionality of the system; are found. In particular; a larger emission from the upper polariton with respect to the lower polariton is found for any temperature. Moreover; a two-lobe angular emission from the lower branch is also expected. In the case of large pump excess energies; when hot carriers are injected into the system; longitudinal-optical-phonon emission has also been considered as a possible polariton formation mechanism; and shown to reduce only partially the effects summarized above. IS - 12 JF - Physical Review B TI - Bottleneck effects in the relaxation and photoluminescence of microcavity polaritons PB - American Physical Society VL - 56 SP - 7554 KW - bottleneck KW - keeling_ref AU - Tassone, F AU - Piermarocchi, C AU - Savona, V AU - Quattropani, A AU - Schwendimann, P PY - 1997//15/ UR - http://dx.doi.org/10.1103/PhysRevB.56.7554 ER -